Ductile Iron Flexible Connection
Dresser Coupling Joint - High Durability for Industrial Piping
RUNXING’s
Ductile Iron Dresser Coupling is engineered for universal industrial piping applications, offering exceptional flexibility and durability. Made from premium ductile iron, this universal ductile iron flexible connection dresser compensates for pipe misalignment, reduces vibration, and ensures leak-proof performance. Compliant with international standards, our
Dresser Couplings deliver long-term reliability for water, oil, and gas pipeline systems.
Product Overview
RUNXING’s Ductile Iron Flexible Connection Dresser Coupling Joint is a high-performance piping solution designed to connect ductile iron pipes in industrial, municipal, and commercial applications. This universal dresser coupling eliminates the need for complex welding or flanging, providing a fast, secure, and flexible connection that accommodates axial, angular, and lateral misalignment. As a core product, our
Ductile Iron Universal Dresser Coupling is built to withstand high pressure, corrosion, and extreme temperature variations, making it ideal for critical fluid transfer systems.
The key advantage of our
Dresser Ductile Iron Couplings is their ability to reduce installation time by up to 50% compared to traditional connection methods, while ensuring long-term leak resistance and minimal maintenance. Whether for water supply, wastewater treatment, oil and gas transmission, or fire protection systems, this product delivers consistent performance and cost savings for global buyers.
Technical Specifications
Material: Body and gasket - Grade 550-70 ductile iron (EN-GJS-500-7), sealing ring - NBR/EPDM/Viton (customizable)
Size Range: 2" to 48" (DN50 to DN1200), compatible with standard ductile iron pipes (ANSI/AWWA/CEN standards)
Pressure Rating: Up to 300 PSI (20 bar), working temperature: -20°C to 120°C
Connection Type: Grooved end, flexible joint with mechanical locking bolts
Corrosion Protection: Epoxy coating (internal/external) per AWWA C210, zinc plating on fasteners
Superior Flexibility: The Ductile Iron Flexible Connection Dresser Pipe accommodates up to 5° angular misalignment and 10mm axial movement, eliminating stress on pipe systems.
High Durability: Ductile iron construction resists impact, corrosion, and wear, with a service life of over 20 years in standard conditions.
Leak-Proof Sealing: Precision-engineered gasket ensures tight sealing even under high pressure and temperature fluctuations.
Easy Installation: No special tools required – the coupling can be installed in minutes by two technicians, reducing labor costs.
Universal Compatibility: Works with all standard ductile iron pipes (ANSI, AWWA, CEN), no need for custom adapters.
Installation Steps
Prepare Pipes: Cut the ductile iron pipe to the required length, deburr the end, and ensure the grooved section is clean and free of debris.
Install Gasket: Place the NBR/EPDM gasket onto the pipe end, ensuring it sits flush with the groove.
Align Pipes: Join the two pipe ends, aligning them to within the allowed misalignment range (max 5° angular).
Secure Coupling: Slide the ductile iron universal dresser coupling over the joint, tighten the bolts evenly in a crisscross pattern to the recommended torque (80-100 N·m).
Test Connection: Conduct a pressure test at 1.5 times the working pressure to verify leak-proof performance before commissioning.
Application Scenarios
Our Ductile Iron Dresser Coupling is widely used in global industrial and infrastructure projects, including:
Municipal Water Supply: Connecting water distribution pipes in cities and towns, resistant to underground corrosion and soil movement.
Wastewater Treatment: Sealing and flexible connection of sewage pipes, withstands chemical corrosion from wastewater.
Oil & Gas Industry: Onshore pipeline systems for crude oil, natural gas, and refined products (compliant with ANSI standards).
Fire Protection Systems: Rapid connection of fire sprinkler pipes, ensuring reliable performance in emergency situations.
Industrial Manufacturing: Piping for cooling water, compressed air, and process fluids in factories.
Value for Buyers
Cost Reduction: 50% faster installation cuts labor costs; minimal maintenance reduces long-term operational expenses.
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